/mcpbox). Password is configured on the End User Configuration page in the Digest Credentials field. If this is a third-party phone, ensure that the phone's digest credentials match the digest credentials configured on the End User Configuration page in Unified CM Administration. If this is a Cisco IP phone, go to the Cisco Unified Reporting web page to confirm that database replication has a "good status" in the Unified CM Database Status report. You can also go to Real-Time Reporting Tool (RTMT) and check the Replication Status in the Database Summary page. If status shows 2, then replication is working. If the database replication status is good, reset the device. If the problem still persists, restart the TFTP service and the Cisco CallManager service from the Control Center - Feature Services web page. 6 MaxLinesExceeded - The phone is attempting to register more lines than are allowed. The maximum lines per device is 1024. Reduce the number of lines configured on this device. 7 TransportProtocolMismatch - Incorrect transport protocol (UDP, TCP or TCL) on which the REGISTER message was received. If the device is a third-party phone, ensure that the phone is using a transport protocol that matches the Phone Security Profile 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 221/343